Grimes Airport is a privately owned public-use airport located two nautical miles (3.7 km) east of the central business district of Bethel, in Berks County, Pennsylvania, United States.Facilities and aircraftGrimes Airport covers an area of 50acre at an elevation of 582 feet (177 m) above mean sea level. It has one runway designated 11/29 with a turf surface measuring 2,720 by 100 feet (829 x 30 m).For the 12-month period ending May 14, 2009, the airport had 650 aircraft operations, an average of 54 per month: 92% general aviation and 8% military. At that time there were 17 aircraft based at this airport: 100% single-engine.